Home / 28,376.70-39,158.34-16,276.56

Finding the Fourth Proportional to 28,376.70, 39,158.34 and 16,276.56

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Solution

The fourth proportional to 28,376.70, 39,158.34 and 16,276.56 is: 22,460.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,376.70 : 39,158.34 = 16,276.56 : x
  2. Step 2: Convert to fraction form
    28,376.70/39,158.34 = 16,276.56/x
  3. Step 3: Cross multiply
    28,376.70x = 39,158.34 × 16,276.56
  4. Step 4: Simplify right side
    28,376.70x = 637,363,070.51
  5. Step 5: Solve for x
    x = 637,363,070.51/28,376.70
  6. Step 6: Final answer
    x = 22,460.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.